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Angelia Pozzi claimed The abacus is as useful and effecient a machine today as it was when it was first created centures ago. Whether you´re an expert in the latest computer technology or you´re mastering arithmetic and word problems for the first time, it won´t take long to learn the basics (and even the not-so-basics) of adding, subtracting, multiplying, and dividing on this ingenious and fun-to-use mathematical tool.
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